Pneumatic flange butterfly valve easy to disassemble

Abstract

The utility model relates to the field of pneumatic butterfly valves, and discloses an easily-detached pneumatic flange butterfly valve which comprises a butterfly valve body, a flange ring is fixedly connected to one side of the butterfly valve body, a pipeline is movably connected to one side of the flange ring, and an upper limiting plate is movably connected to the top of the pipeline. According to the pneumatic flange butterfly valve easy to disassemble, through the arrangement of the butterfly valve body, the flange ring, the pipeline, the upper limiting plate, the lower limiting plate, the inserting block, the limiting rod, the reset spring and the reinforcing mechanism, the butterfly valve can have the effect of being convenient to disassemble, and the upper limiting plate and the lower limiting plate can be assembled outside the connecting position of the flange ring and the pipeline in a clamping mode; and then the upper limiting plate and the lower limiting plate are attached and kept stable through the limiting structure and the reinforcing mechanism, through the installation mode, other tools do not need to be used during disassembly, rapid disassembly operation can be completed only according to reverse steps, the situation that maintenance and the like are affected due to disassembly difficulty is avoided, and the use requirements of people are met.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic butterfly valves, in particular to an easily disassembled pneumatic flange butterfly valve. Background Art

[0002] Pneumatic butterfly valve is composed of pneumatic actuator and butterfly valve. Pneumatic butterfly valve is a pneumatic valve that uses a circular butterfly plate that rotates with the valve stem to open and close to realize the activation action. It is mainly used as a shut-off valve, and can also be designed to have the function of regulation or section valve and regulation. Butterfly valves are increasingly used in low-pressure large and medium-caliber pipelines. Pneumatic butterfly valve classification: stainless steel pneumatic butterfly valve, hard seal pneumatic butterfly valve, soft seal pneumatic butterfly valve, carbon steel pneumatic butterfly valve. The main advantages of pneumatic butterfly valves are simple structure, small size, light weight, and low cost. This feature is particularly significant for pneumatic butterfly valves. They are installed in high-altitude dark passages and are easy to operate through the control of a two-position five-way solenoid valve. The flow medium can also be adjusted.

[0003] The existing technology has the following problems:

[0004] In the prior art, pneumatic flange butterfly valves are not easy to disassemble. During use, pneumatic flange butterfly valves may suffer performance degradation or failure due to medium corrosion, wear and other reasons. However, the difficulty in disassembly will make the maintenance or replacement of parts take too long, which has certain usage limitations. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides an easily disassembled pneumatic flange butterfly valve, which has the advantages of being easy to disassemble, etc., and solves the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of easy disassembly, the utility model provides the following technical solutions: an easily disassembled pneumatic flange butterfly valve, comprising a butterfly valve body, one side of the butterfly valve body is fixedly connected to a flange ring, one side of the flange ring is movably connected to a pipeline, and the top of the pipeline is movably connected to an upper limit plate.

[0009] The bottom of the limit plate is movably connected to a lower limit plate, the bottom of the upper limit plate is fixedly connected to an insert block, the front of the insert block is movably connected to a limit rod, and one side of the lower limit plate is fixedly installed with a reinforcement mechanism, which can make the butterfly valve easy to disassemble, and the upper limit plate and the lower limit plate can be assembled on the outside of the connection between the flange ring and the pipeline in a snap-fit ​​manner, and then the upper limit plate and the lower limit plate are made to fit and remain stable by using the limit structure and the reinforcement mechanism. This installation method does not require the use of other tools during disassembly, and the quick disassembly operation can be completed by following the reverse steps, avoiding the impact on maintenance and other aspects due to difficult disassembly, and meeting people's usage needs.

[0010] Preferably, a through hole is formed on one side of the plug block and the lower limit plate, and the shape and size of the through hole match the shape and size of the limit rod. The through hole allows the limit rod to pass through the limit plate and the plug block, thereby limiting the plug block.

[0011] Preferably, a return spring is fixedly connected to one side of the limit rod, and two ends of the return spring are respectively fixedly connected to one side of the limit rod and one side of the lower limit plate, so that the return spring can drive the limit rod to retract after losing the tension, so that the limit rod can pass through the insert block for limiting.

[0012] Preferably, the reinforcement mechanism includes a fixed block, the front face of the fixed block is movably connected to a movable shaft, the front face of the fixed block is movably connected to a buckle, one side of the buckle is movably connected to a limiting block, and the reinforcement mechanism utilizes the cooperation of the buckle and the limiting block to reinforce and limit the upper limit plate and the lower limit plate, thereby making the fit between the two more stable.

[0013] Preferably, a slot is provided on the top of the lower limit plate, and the lower limit plate is movably connected to the plug-in block through the slot, and the slot allows the plug-in block to be inserted and installed on the lower limit plate, thereby completing the preliminary assembly of the upper limit plate and the lower limit plate.

[0014] Preferably, a groove is provided at the bottom of the upper limit plate, and the upper limit plate is movably connected to the flange ring and the pipeline through the groove, and the groove enables the upper limit plate to be installed on the outside of the flange ring and the pipeline in a wrapped manner.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides an easily disassembled pneumatic flange butterfly valve having the following features:

[0017] Beneficial effects:

[0018] The easily detachable pneumatic flange butterfly valve can be easily disassembled by means of the butterfly valve body, flange ring, pipeline, upper limit plate, lower limit plate, plug, limit rod, reset spring and reinforcement mechanism. The upper limit plate and the lower limit plate can be assembled on the outside of the connection between the flange ring and the pipeline by means of snap-fitting, and then the upper limit plate and the lower limit plate can be fit and kept firmly by means of the limit structure and the reinforcement mechanism. This installation method does not require the use of other tools during disassembly, and the quick disassembly operation can be completed by simply following the reverse steps, thereby avoiding the influence of maintenance and other aspects due to the difficulty of disassembly, and meeting people's use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a front cross-sectional view of the utility model;

[0021] Figure 3 This is a sectional view of the three-dimensional structure of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the reinforcement mechanism of the utility model.

[0023] In the figure: 1. Butterfly valve body; 2. Flange ring; 3. Pipe; 4. Upper limit plate; 5. Lower limit plate; 6. Insert block; 7. Slot; 8. Limit rod; 9. Return spring; 10. Reinforcement mechanism; 101. Fixed block; 102. Movable shaft; 103. Buckle; 104. Limit block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] The preferred embodiment of the easily disassembled pneumatic flange butterfly valve provided by the utility model is as follows: Figures 1 to 4 As shown: an easily disassembled pneumatic flange butterfly valve comprises a butterfly valve body 1, a flange ring 2 is fixedly connected to one side of the butterfly valve body 1, a pipe 3 is movably connected to one side of the flange ring 2, and an upper limit plate 4 is movably connected to the top of the pipe 3.

[0027] The bottom of the limit plate 4 is movably connected to the lower limit plate 5, the bottom of the upper limit plate 4 is fixedly connected to the plug block 6, the front of the plug block 6 is movably connected to the limit rod 8, and a reinforcement mechanism 10 is fixedly installed on one side of the lower limit plate 5, which can make the butterfly valve easy to disassemble. The upper limit plate 4 and the lower limit plate 5 can be assembled on the outside of the connection between the flange ring 2 and the pipeline 3 by snapping together, and then the upper limit plate 4 and the lower limit plate 5 are made to fit and remain stable by using the limiting structure and the reinforcement mechanism 10. This installation method does not require the use of other tools during disassembly, and the quick disassembly operation can be completed by following the reverse steps, avoiding the influence of maintenance and other aspects due to difficult disassembly, and meeting people's usage needs.

[0028] In this embodiment, a through hole is opened on one side of the plug block 6 and the lower limit plate 5, and the shape and size of the through hole match the shape and size of the limit rod 8. The through hole allows the limit rod 8 to pass through the limit plate 5 and the plug block 6, thereby limiting the plug block 6.

[0029] In this embodiment, a return spring 9 is fixedly connected to one side of the limit rod 8, and the two ends of the return spring 9 are respectively fixedly connected to one side of the limit rod 8 and one side of the lower limit plate 5, so that the return spring 9 can drive the limit rod 8 to retract after losing the tension, so that the limit rod 8 can pass through the insert block 6 for limitation.

[0030] In this embodiment, the reinforcement mechanism 10 includes a fixed block 101, the front face of the fixed block 101 is movably connected with a movable shaft 102, the front face of the fixed block 101 is movably connected with a buckle 103, one side of the buckle 103 is movably connected with a limiting block 104, and the reinforcement mechanism 10 utilizes the cooperation of the buckle 103 and the limiting block 104 to reinforce and limit the upper limit plate 4 and the lower limit plate 5, so that the fit between the two is more stable.

[0031] Example 2

[0032] On the basis of Example 1, a preferred embodiment of the easily detachable pneumatic flange butterfly valve provided by the utility model is as follows Figures 1 to 4 As shown: a slot 7 is provided on the top of the lower limit plate 5, and the lower limit plate 5 is movably connected to the plug block 6 through the slot 7. The slot 7 allows the plug block 6 to be inserted and installed on the lower limit plate 5, thereby completing the preliminary assembly of the upper limit plate 4 and the lower limit plate 5.

[0033] In this embodiment, a groove is provided at the bottom of the upper limit plate 4, and the upper limit plate 4 is movably connected to the flange ring 2 and the pipe 3 through the groove. The groove enables the upper limit plate 4 to be installed in a wrapped manner on the outside of the flange ring 2 and the pipe 3.

[0034] When in use, fit the pipe 3 with the flange ring 2, and then place the lower limit plate 5 at the bottom of the connection between the flange ring 2 and the pipe 3. At this time, pull the limit rod 8, and then place the upper limit plate 4 in the same way on the top of the connection between the pipe 3 and the flange ring 2, and make it fit on the top of the lower limit plate 5. The fit allows the plug 6 to be inserted into the inside of the slot 7. At this time, release the limit rod 8. The limit rod 8 will retract due to the reset ability of the reset spring 9 and pass through one side of the plug 6, thereby limiting the plug 6. Then, bend the buckle 103 to cooperate with the limit block 104 to reinforce the upper limit plate 4 and the lower limit plate 5, thereby completing the work.

[0035] To sum up, the easily disassembled pneumatic flange butterfly valve, through the butterfly valve body 1, flange ring 2, pipeline 3, upper limit plate 4, lower limit plate 5, plug 6, limit rod 8, reset spring 9 and reinforcement mechanism 10, can make the butterfly valve easy to disassemble. The upper limit plate 4 and the lower limit plate 5 can be assembled on the outside of the connection between the flange ring 2 and the pipeline 3 by snapping together, and then the upper limit plate 4 and the lower limit plate 5 are made to fit and remain stable by using the limit structure and reinforcement mechanism 10. This installation method does not require the use of other tools during disassembly, and the quick disassembly operation can be completed by following the reverse steps, avoiding the influence of maintenance and other aspects due to the difficulty of disassembly, thereby meeting people's use needs.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An easily disassembled pneumatic flange butterfly valve, comprising a butterfly valve body (1), characterized in that: A flange ring (2) is fixedly connected to one side of the butterfly valve body (1), a pipeline (3) is movably connected to one side of the flange ring (2), and an upper limit plate (4) is movably connected to the top of the pipeline (3); The bottom of the limit plate (4) is movably connected to a lower limit plate (5), the bottom of the upper limit plate (4) is fixedly connected to an insert block (6), the front of the insert block (6) is movably connected to a limit rod (8), and a reinforcement mechanism (10) is fixedly installed on one side of the lower limit plate (5).

2. The easily detachable pneumatic flange butterfly valve according to claim 1, characterized in that: A through hole is provided on one side of the insert block (6) and the lower limit plate (5), and the shape and size of the through hole match the shape and size of the limit rod (8).

3. The easily detachable pneumatic flange butterfly valve according to claim 1, characterized in that: A return spring (9) is fixedly connected to one side of the limiting rod (8).

4. The easily detachable pneumatic flange butterfly valve according to claim 1, characterized in that: The reinforcement mechanism (10) comprises a fixed block (101), the front side of the fixed block (101) is movably connected to a movable shaft (102), the front side of the fixed block (101) is movably connected to a buckle (103), and one side of the buckle (103) is movably connected to a limit block (104).

5. The easily detachable pneumatic flange butterfly valve according to claim 1, characterized in that: A slot (7) is provided on the top of the lower limit plate (5), and the lower limit plate (5) is movably connected to the insert block (6) via the slot (7).

6. The easily detachable pneumatic flange butterfly valve according to claim 1, characterized in that: The bottom of the upper limit plate (4) is provided with a groove, and the upper limit plate (4) is movably connected to the flange ring (2) and the pipeline (3) through the groove.

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